enhance generic_repr to cascade down superclasses

[Mike Bayer]

if we make MySQL's _String do this:

class _StringType(sqltypes.String):
    """Base for MySQL string types."""

    def __repr__(self):
        return util.generic_repr(self,
                                 to_inspect=_StringType)

now we lose "length", unless we add it to additional_kw. This is silly, the to_inspect attribute of generic_repr should accept a list of classes, which we can assume propagates using kw.

[Mike Bayer]

tests we can add when this works:

diff --git a/test/dialect/mysql/test_types.py b/test/dialect/mysql/test_types.py
index 071b844..fecf64e 100644
--- a/test/dialect/mysql/test_types.py
+++ b/test/dialect/mysql/test_types.py
@@ -142,8 +142,14 @@ class TypesTest(fixtures.TestBase, AssertsExecutionResults, AssertsCompiledSQL):
            ]

         for type_, args, kw, res in columns:
+            type_inst = type_(*args, **kw)
             self.assert_compile(
-                type_(*args, **kw),
+                type_inst,
+                res
+            )
+            repr_type = eval(repr(type_inst))
+            self.assert_compile(
+                repr_type,
                 res
             )

@@ -239,8 +245,14 @@ class TypesTest(fixtures.TestBase, AssertsExecutionResults, AssertsCompiledSQL):
            ]

         for type_, args, kw, res in columns:
+            type_inst = type_(*args, **kw)
+            self.assert_compile(
+                type_inst,
+                res
+            )
+            repr_type = eval(repr(type_inst))
             self.assert_compile(
-                type_(*args, **kw),
+                repr_type,
                 res
             )

[Mike Bayer]

this will fix https://bitbucket.org/zzzeek/alembic/issue/127/auto-generate-seems-to-miss-unsigned

[Mike Bayer]

2692238f45ae4d2f46949dfa52b16132

[Mike Bayer]

Removing milestone: 0.9.0 (automated comment)